the latent heat of vaporisation of water is (a) *Jkg^-1 (b) 22.6*105 J kg^-1 (c) 22.6*106 J kg^-1 (d) 6.22*105J kg^-1
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Answer:Specific heat: = energy required to change a unit mass of a material by 1°C. Units: energy ... Cpsteam = 2.0 x 103 J kg-1 °C-1. Lvaporization = 2.3 x 106 J kg- 1. M = 1 kg. DE = energy to heat water to boiling point
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